It can often clear "impenetrable" clogs that enzyme-based cleaners can't touch. Safety First: The Risks of Caustic Soda

When lye hits the grease and fats trapped in your pipes, it converts them into soap. Because soap is water-soluble, the clog literally begins to dissolve itself.

Drain Cleaner Sodium Hydroxide Patched Link

It can often clear "impenetrable" clogs that enzyme-based cleaners can't touch. Safety First: The Risks of Caustic Soda

When lye hits the grease and fats trapped in your pipes, it converts them into soap. Because soap is water-soluble, the clog literally begins to dissolve itself. drain cleaner sodium hydroxide